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KiCad projectAll 134 files, ready to open in KiCad5.8 MB

For fabricationGerbers, drill, pick-and-place and BOMGerbers and drill zip78 KB Gerbers and drill zip: nano_nrf25 KB Gerbers and drill zip: nrf_nano30 KB Pick and place (CSV)1.6 KB Pick and place (CSV): nano_nrf1.2 KB Pick and place (CSV): nrf_nano1.6 KB PCB BOM CSV (PCB SVG)1.2 KB PCB BOM CSV (PCB SVG: nano_nrf)862 B PCB BOM CSV (PCB SVG: nrf_nano)1.2 KB

3D modelThe board with its parts, for an enclosure (GLB)3D model (GLB)2.6 MB 3D model (GLB): nano_nrf1.5 MB 3D model (GLB): nrf_nano1.8 MB

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README

Denbit

Training wheels for the NodeMCU

##Installation

Download and install the Aduino IDE plus any drivers it asks too. You can use the free version with the JUST DOWNLOAD link. No need to donate money.
Install the NodeMCU "board" into the Arduino IDE:
Start Arduino and open Preferences window.
Enter http://arduino.esp8266.com/stable/package_esp8266com_index.json into Additional Board Manager URLs field and click Ok:

Open the Boards Manager Tools > Board > Boards Manager...:

Scroll down to esp8266 by ESP8266 Community, click More info and select version 2.2.0 then click install:

Click Close once it installed
Select the NodeMCU 1.0 board from Tools > Board menu and select NodeMCU 1.0 (ESP-12E Module):

Install the denbit library
Download the latest release of this repo
Sketch -> Include Library -> Add .ZIP Library... then select the file downloaded in the step above.
Rename ~/Documents/Arduino/libraries/denbit/src/default_config.h to config.h and edit its content to have the wifi access details and your denbit's name.
Mac users, if programming with a usb cable, install the driver from ().

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Training wheels for the nodemcu

LICENSE
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Updated Oct 1, 2026

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Make it do something...

Connect the denbit to the usb port of the computer.
Select the Port the usb is connected to
On a Mac it will be /dev/cu.SLAB_USBtoUART
On Windows it will be COMM and a number so something like COMM4
Load the Blink "sketch"
File -> Examples -> Denbit -> Basics -> Blink
Compile (verify) the software: click the tick in the top left of the Arduino application...

wait while it compiles...

Upload the software: click the arrow in the top left of the Arduino application:

wait while it uploads...

The center light will be blue while it uploads.

When the Arduino window says "Done uploading" the green light will blink on & off
Change the Blink sketch so that delay(1000) is delay(500), then compile & upload again. The green LED will now blink twice as fast

Play with the Denbit Basic examples

Fade
DigitalReadSerial
AnalogReadSerial
Denbit
Knob

Play with servos

ServoSweep
ServoKnob

Then use some sensors

Temperature
Knock

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